Browsing Physics (PHY) by thesis submitted date"2000"
Now showing items 1-6 of 6
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Carrier Mobility And High Field Transport in Modulation Doped p-Type Ge/Si1-xGex And n-Type Si/Si1-xGex Heterostructures
(Indian Institute of Science, 2007-06-26)Modulation doped heterostructures have revolutionized the operation of field effect devices by increasing the speed of operation. One of the factors that affects the speed of operation of these devices is the mobility of ... -
Experimental investigations on metal-insulator transition and structure in amorphous carbon films
Conductivity of carbon films prepared from TCPA at pyrolysis temperatures of 700°C, 800°C, and 900°C was measured by varying the temperature between 1.4 K to 300 K. To study the effect of substrates, films were deposited ... -
Ground states, excitations, thermodynamics and exact results in various lattice systems
This thesis covers problems in a few different aspects of interacting many-particle systems on a lattice. The first problem is of a quantum dynamical system, and the rest are of quantum and classical magnetic systems. We ... -
Reactive diffusion in AI/Ge multilayers
It may be mentioned in this context that there is no evidence of the hexagonal and orthorhombic phase reported in e-beam annealed amorphous Al-Ge films in the present investigations. It is also interesting to note that the ... -
Solid state NMR methods for the study of oriented systems : New techniques and applications
Nuclear Magnetic Resonance was first observed in 1946 by two independent groups; Purcell et al. at Harvard University and Bloch et al. at Stanford University. Since then, NMR spectroscopy has made such phenomenal progress ... -
Spatiotemporally chaotic states of some Nonequilibrium systems
We have carried out the most extensive numerical study of model (1), especially with a view to elucidating the nature of its statistical steady states and transitions between them. Our work is guided by studies of phase ...